S B COX READY MIX INC

DOT# 2284804 Rockville, VA Authorized For-Hire / Private Property
(804) 364-0500 rknack@coxreadymix.com 2160 Lanier Lane, Rockville VA 23146
84 power units · all owned 56 drivers
Intrastate Only
Marginal
FRED Score 32.1 / 100
Moderate confidence
14 yrs history · 27 roadside inspections

FMCSA Live Status

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Fleet & equipment

Power units
84
Drivers · CDL
56 · 56
Annual miles
1.1M unreliable
Type Own Term Trip Total
Trucks 75 0 0 75
Tractors 9 0 0 9
Trailers 12 0 0 12

Registration

Registered
03-16-2012 (14 yrs)
MCS-150 Update
01-07-2026
FRED Score Date
Nov 07, 2026
Officer
MORGAN S. NELSON
Officer
S BARBEE COX III

Cargo

66.6
medium risk
Motor Vehicles Building Materials Construction
High-Risk Cargo
Motor Vehicles

Estimated from the commodity types reported to FMCSA, not from loss history or the true cargo mix.

Mileage Unreliable

MCS-150 annual mileage appears too low for fleet size given observed activity. The per-100k-mile rate benchmarks on this page are excluded; the FRED grade does not use mileage (crash exposure is power-unit-years, violation exposure is inspection counts).

Intrastate operation

Runs within Virginia only. Intrastate fleets in Virginia are inspected about 1 a year for every 15 trucks; interstate fleets, about 1 a year for every 2 trucks. So this record rests mainly on crash reports, which states file for intrastate trucks too, and few inspections are ordinary here.

Expected crash rate is about 1.5× that of similar fleets.

Similar fleets: intrastate fleets of about 84 trucks with the same kind of operation, years in business and amount of road activity. Compared using its own crash record and roadside inspections.

This motor carrier 1.52×
ExcellentStrongSatisf.MarginalPoorCritical
▲ Similar fleets 1.0×
Expected crashes, next 12 months
2.5 vs 1.7 for similar fleets
This motor carrier
2.5
Similar fleets
1.7
Chance of a fatal crash, next 12 months
~7%
About 1.5× similar fleets.

Worth a closer look

From the FMCSA record. The grade already counts the safety items; insurance filings and links to other motor carriers are not in it.

  • Injury crashes
    3 crashes with 3 people hurt in 24 months.
    Ask: claim status and driver history for these crashes.
  • Driver qualification
    2 out-of-service violations against drivers: 2 no valid CDL (Mar 2025 – Jun 2026).
    Ask: driver qualification files and hiring standards.
  • Brakes and lights
    Brakes are 7 of 19 violations (37%). Brake or light defects led to 2 out-of-service orders.
    Ask: the preventive-maintenance schedule and shop records.
Strengths
  • No FMCSA BASIC alerts.
Data flags
  • Unreliable reported mileage
    The motor carrier's self-reported annual mileage (MCS-150) looks implausible, so exposure- and mileage-based figures may be distorted.
  • Estimated mileage
    No usable mileage was reported, so exposure was estimated from similar motor carriers. Mileage-based metrics here are approximate.

Track record

FMCSA record, Nov 2024 – Jun 2026 · grade scored on Aug 1, 2025 → Jul 31, 2026
Crashes
4
0 fatalities · 3 injuries · 0 tow-aways
Inspections
27
63% clean (no violations)
Vehicle out-of-service
37.5%
3 of 8
Intrastate avg 30.6%
Driver out-of-service
7.4%
2 of 27
Intrastate avg 8.5%
Violations
19
5 out-of-service

Inspected more often than intrastate fleets of 50–99 trucks in Virginia (about 8 in 24 months would be typical; 58% of them had none).

Inspections per quarter With an out-of-service order
Q4 '24: 2 inspections, 1 out of service 2 Q4 '24 Q1 '25: 5 inspections, 2 out of service 5 Q1 '25 Q2 '25: 2 inspections, 0 out of service 2 Q2 '25 Q3 '25: 3 inspections, 1 out of service 3 Q3 '25 Q4 '25: 3 inspections, 0 out of service 3 Q4 '25 Q1 '26: 4 inspections, 0 out of service 4 Q1 '26 Q2 '26: 8 inspections, 1 out of service 8 Q2 '26
vs 364 peer fleets
This motor carrierPeers
Crashes 0.036 0.010
Inspections 0.21 0.23
Violations 0.11 0.14
Critical violations 0.01 0.02

Yearly rates from the last 24 months. Peers: intrastate fleets, 50–99 power units, medium-risk cargo.

What they get cited for

19 violations · 24 months
  • Vehicle maintenance No alert
    16 · 3 OOS
    Brakes 7 · Lights 6 · Cargo securement 2 · Other parts 1
  • Driver fitness No alert
    3 · 2 OOS
    No valid CDL 2 · Medical certificate 1
  • Unsafe driving No alert
    0
  • Hours of service No alert
    0
  • Drugs & alcohol No alert
    0
Out-of-service violations “No alert” = under FMCSA's BASIC intervention threshold

Violations by quarter

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No violation trend data

Crashes

24 months
  • Jun
    22
    2026
    Virginia
    Injury · 1 person hurt
    Daylight, two-way trafficway divided unprotected median.
  • Jun
    4
    2026
    Virginia
    Property damage only
    Daylight, two-way trafficway divided unprotected median.
  • Nov
    4
    2025
    Virginia
    Injury · 1 person hurt
    Daylight, two-way trafficway divided unprotected median. Citation issued.
  • Oct
    15
    2025
    Virginia
    Injury · 1 person hurt
    Daylight, two-way trafficway divided unprotected median. Citation issued.

Insurance filed with FMCSA

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No MC, FF or MX docket on FMCSA's registration for this motor carrier, so there are no insurance filings to show. FMCSA collects filings only from registered for-hire authorities; other motor carriers keep proof of insurance (MCS-90) at their place of business.

FMCSA filings only, not a policy audit. Not part of the FRED grade. Wrong or out of date?

Where it happens

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Inspections by state
  • Virginia (HQ) 27

Mostly inspected in its home state (100%).